Vapor-electric device



Feb. 10, 1931. s. AOKl 1,792,265

VAPOR ELECTRIC DEVICE Filed Feb. 21, 192' Fig. l.

Inventor: Sataro AoKi. y M

His Abtorneg.

drawings and its scope will be pointed out in Y Patented Feb. 10, 1931 SATARO AOKI, OF HIRATUKA, EBARA, TOKYO, JAPAN,

ASSIGNOR T0 GCEENERAI; ELEC- TRIC COMPANY, A CORPORATION on NEW YOR VAPOR-ELEGTRIG DEVICE Application filed February 21, 1927, Serial No. 170,032, and in J 'apan November 2, 1935.

' My invention relates to vapor electric devices which comprise a plurality of electrodes.

mounted Within an evacuated vessel, such as an iron tank or the like, and has for its princi-- pal object the provision of an improved arrangement for supporting the electrodes and regulating the temperature of the vessel.

In the construction" of vaporelectric devices, such as a mercury rectifier comprising an iron tank, it is customary to make the tank of material which is strong enough to support the anodes and to surround the tank by a chamber through which'cooling-fluid is circulated for the purpose of dissipatingtheheat incident to'the operation of the rectifier. The making of a heavy tank that will hold a vacuum involves considerable diificulty for the reason that the heavy parts of which the tank is constructed are not readily welded together to form an impervious joint. A further disadvantage of a heavy tank is that heat is not readily transmitted through its walls. In accordance with my invention,

these difliculties are avoided by mounting the anodes on the casing of the cooling chamber and making the walls of the vacuum tank only thick enough to withstand the difference in pressure between its inside and outside surfaces. I

My invention will be better understood from the following description when con sidered in connection with the accompanying the appended claim.

Referring to the drawings Fig. l is a vertical sectional View of a mercury rectifier wherein my invention has been embodied;

and Fig. 2 illustrates certain details in the construction of this rectifier.

Fig. 1 illustrates a mercury arc rectifier comprising a relatively light vessel 1 which contains a cathode'2 and anodes 3 and is surrounded by a comparatively heavy vessel 4 upon the cover of which the anodes 3 and their cooling elements" 5 are supported. Suit able connections-6 areprovided for circulating a cooling fluid between the covers of the vessels 1 and i and like connections 7 are provided for circulating a cooling fluid between the side walls and the bottoms of the containers. In order to insulate the anodes from v the vessels 1 and 4, insulators 8 are inter:

posed between the Walls of thesevessels and Means such as. clamping the anode stems. plates 9 and suitable gaskets may be provided for ensuring gas tight joints at the comparatively cool outersurface of the vessel 4. As

however, that the invention is susceptible of being modified to meet the different conditions encountered in its use and I therefore aim to cover by the appended claims all modifications within the true spirit and scope of my invention.

What I claim as new, and desire to secure by Letters Patent of the United States, is:

A vapor electric device comprising an in-.

ner vessel having a relatively thin wall, a plurality of electrodes located within said vessel, and an outer vessel'havinga relatively thick wall arranged to support said electrodes and to form an enclosed cooling cham- 7 her adJaCent the wall of said innervesseL; 1

In witness whereof, I have hereunto set my hand this 30th dayof November, 1926.

SATARO AOKI.

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